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-   -   difference between mass and momentum source (http://www.cfd-online.com/Forums/main/109783-difference-between-mass-momentum-source.html)

Niru November 26, 2012 17:42

difference between mass and momentum source
 
I included a subdomain in my domain (CFX-PRE)
I am trying to model a cryogenic which flows in 2 phase. Currently i have entered 2 components Air & cryogenic.
Cryogenic has to modelled in multiphase.

1.I would like to know the difference between specifying a mass source and
momemtum source.
2.Also difference between specifying Bulk source & fluid sources separately.

Engr.RZA November 28, 2012 11:41

I suggest you to use mass flow conditions for your case.

Bulk source is suitable for the fully developed flow in channel/pipe.


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